Hellmann function to extrapolate wind speed from 10 and 50 meters to higher altitudes

Hellmann function to extrapolate wind speed from 10 and 50 meters to higher altitudes

fHellmann(W10M, W50M, na = 0, inf = 0, lo = 0, up = 0.6, ...)

fH(W10M, W50M, na = 0, inf = 0, lo = 0, up = 0.6, ...)

Arguments

W10M

wind speed (m/s) at 10 meters altitude

W50M

wind speed (m/s) at 50 meters altitude

na

values to return in the case of NA

inf

values to return instead of infinite

lo

lower limit, zero by default to control negative values

up

lower limit, 0.6 by default to control excessive values

Value

a numeric vector with estimated Hellmann exponent.

See also

fWindSpeedExtrapolation (fWSE) for wind speed extrapolation

Examples

fH(5, 10)
#> [1] 0.4306766